The Semiconductor Device,diode, cataloged under National Stock Number 5961-01-437-7647, is classified within Federal Supply Class 5961 (Semiconductor Devices and Associated Hardware) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Protek Devices Lp Dba Protek Devices. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5961-01-437-7647 |
| Primary Part Number | PHP440 |
| Item Name | Semiconductor Device,diode |
| FSC / FSG | 5961 / 59 — Semiconductor Devices and Associated Hardware |
| Manufacturer | Protek Devices Lp Dba Protek Devices |
| Status | ACTIVE |
| Voltage Rating in Volts Per Characteristic | 623.0 NOMINAL WORKING PEAK REVERSE VOLTAGE |
| Features Provided | HERMETICALLY SEALED CASE |
| Function for Which Designed | TRANSIENT SUPPRESSOR |
| Material | SILICON SEMICONDUCTOR |
| Material | GLASS ENCLOSURE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| PHP440 PRIMARY | Protek Devices Lp Dba Protek Devices (USA) |
| Reference | Meaning |
|---|---|
| GZ24426S | 5/9 Secondary reference General Semiconductor Industries Inc |
NSN 5961-01-437-7647 is a Semiconductor Device,diode, manufactured by Protek Devices Lp Dba Protek Devices, classified under FSC 5961, Semiconductor Devices and Associated Hardware. Status: active.
NSN 5961-01-437-7647 has 1 manufacturer part number on file: PHP440 (Protek Devices Lp Dba Protek Devices).
Key specifications for PHP440: Overall Height: 0.500 INCHES NOMINAL IN; Voltage Rating in Volts Per Characteristic: 623.0 NOMINAL WORKING PEAK REVERSE VOLTAGE; Overall Length: 2.250 INCHES NOMINAL IN; Overall Width: 1.375 INCHES NOMINAL IN. 5 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.